Question

All of the following are cartilaginous fish except the

a. manta ray.
b. whale shark.
c. great white shark.
d. iridescent shark catfish.

Answer 1

The answer is (d.) iridescent shark catfish.

Cartilaginous fishes are vertebrates that has jaws, paired fins, scales, and a heart like whale shark, great white shark, and manta ray. This class of fishes are divided into two: Elasmobranchii and Holocephali. While iridescent shark catfish is simply a shark catfish but not a shark.